---
type: "Bill"
title: "Assessment Rate Moratorium & Conforming Changes"
description: "The act only takes effect if the voters statewide approve the repeal of constitutional provisions related to property tax assessment rates set forth in Senate Concurrent Resolution 20-001. Beginning with the property tax year that commences on January 1, 2020, the act creates a moratorium on changing property tax assessment rates. The act also makes conforming amendments to reflect the repealed constitutional provisions."
jurisdiction: "us/states/co"
legislature: "Colorado General Assembly"
session: "2020A"
identifier: "SB 20-223"
citation: "Colorado SB 20-223 (2020A)"
classification: ["bill"]
subjects: []
status: "enacted"
primary_sponsors: ["Chris Hansen", "Daneya Esgar", "Jack Tate", "Matt Soper"]
version_count: 8
action_count: 14
vote_count: 3
first_action: "2020-06-09T06:00:00+00:00"
last_action: "2020-07-13T06:00:00+00:00"
source: "openstates"
source_identifier: "ocd-bill/9901b884-f78d-4b58-ab4a-d44569f70f75"
source_url: "http://leg.colorado.gov/bills/sb20-223"
source_hash: "785f03286212f4ccc15b3117a94ee8312dbf58a7bdf20f9af221b6c605122a9b"
vintage: "2026-07-01"
source_snapshot: "https://data.openstates.org/daily/2026-07-01/public.pgdump"
retrieved_at: "2026-07-06"
confidence: "reported"
tags: ["legislation", "bill", "us-co"]
---

# Colorado SB 20-223 (2020A) — Assessment Rate Moratorium & Conforming Changes

The act only takes effect if the voters statewide approve the repeal of constitutional provisions related to property tax assessment rates set forth in Senate Concurrent Resolution 20-001. Beginning with the property tax year that commences on January 1, 2020, the act creates a moratorium on changing property tax assessment rates. The act also makes conforming amendments to reflect the repealed constitutional provisions.

## Version chain

The bill's text revisions, in order — the diff chain from filing to enrollment.

1. **Committee Amendment** (committee substitute) — [source](http://leg.colorado.gov/sites/default/files/2020a_sb223_h_fin_001.pdf)
2. **Engrossed (06/10/2020)** (committee substitute) — [source](http://leg.colorado.gov/sites/default/files/documents/2020A/bills/2020a_223_eng.pdf)
3. **Final Act (06/19/2020)** (committee substitute) — [source](http://leg.colorado.gov/sites/default/files/documents/2020A/bills/2020a_223_enr.pdf)
4. **Introduced (06/09/2020)** (committee substitute) — [source](http://leg.colorado.gov/sites/default/files/documents/2020A/bills/2020a_223_01.pdf)
5. **Reengrossed (06/11/2020)** (committee substitute) — [source](http://leg.colorado.gov/sites/default/files/documents/2020A/bills/2020a_223_ren.pdf)
6. **Rerevised (06/12/2020)** (committee substitute) — [source](http://leg.colorado.gov/sites/default/files/documents/2020A/bills/2020a_223_rer.pdf)
7. **Revised (06/11/2020)** (committee substitute) — [source](http://leg.colorado.gov/sites/default/files/documents/2020A/bills/2020a_223_rev.pdf)
8. **Signed Act (07/13/2020)** (committee substitute) — [source](http://leg.colorado.gov/sites/default/files/2020a_223_signed.pdf)

## Votes

- BILL — **46–19** (pass) · lower
- BILL — **29–6** (pass) · upper
- BILL — **30–5** (pass) · upper

## Sponsors

- Chris Hansen — primary (person)
- Daneya Esgar — primary (person)
- Jack Tate — primary (person)
- Matt Soper — primary (person)

## Timeline

The legislative action history — every referral, reading, and vote.

- **2020-07-13T06:00:00+00:00** Governor Signed `executive-signature`
- **2020-06-19T06:00:00+00:00** Sent to the Governor `executive-receipt`
- **2020-06-19T06:00:00+00:00** Signed by the Speaker of the House
- **2020-06-19T06:00:00+00:00** Signed by the President of the Senate
- **2020-06-12T06:00:00+00:00** House Third Reading Passed - No Amendments `reading-3, passage`
- **2020-06-11T06:00:00+00:00** House Second Reading Special Order - Passed - No Amendments
- **2020-06-11T06:00:00+00:00** House Committee on Finance Refer Unamended to House Committee of the Whole `committee-passage, referral-committee`
- **2020-06-11T06:00:00+00:00** Introduced In House - Assigned to `introduction`
- **2020-06-11T06:00:00+00:00** Senate Third Reading Passed - No Amendments `reading-3, passage`
- **2020-06-11T06:00:00+00:00** Senate Third Reading Reconsidered - No Amendments
- **2020-06-11T06:00:00+00:00** Senate Third Reading Passed - No Amendments `reading-3, passage`
- **2020-06-10T06:00:00+00:00** Senate Second Reading Special Order - Passed - No Amendments
- **2020-06-10T06:00:00+00:00** Senate Committee on Finance Refer Unamended to Senate Committee of the Whole `committee-passage, referral-committee`
- **2020-06-09T06:00:00+00:00** Introduced In Senate - Assigned to Finance `introduction`

## Source

OpenStates / OpenCivicData bulk snapshot [2026-07-01](https://data.openstates.org/daily/2026-07-01/public.pgdump); origin `ocd-bill/9901b884-f78d-4b58-ab4a-d44569f70f75`. Confidence: reported (aggregated from official Colorado legislature records).